| Far-field R wave sensing causing prolongation of the atrial escape interval of DDD pacemakers with atrial-based lower rate timing. | |
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MedLine Citation:
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PMID: 14622327 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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This report describes the occurrence of prolonged atrial escape intervals (AEI) initiated by sensing of ventricular premature complexes (VPC) without a preceding atrial depolarization or an AV delay in two patients with DDD pacemakers with an atrial-based lower rate response. The prolonged AEIs were due to ventriculoatrial cross-talk so that atrial sensing of the far-field R wave of the VPCs occurred before detection of the R wave by the ventricular channel as a near-field signal. Early atrial sensing of the far-field R wave was promoted by a high atrial sensitivity and/or low ventricular sensitivity and was eliminated by reducing atrial sensitivity and/or increasing ventricular sensitivity. This manifestation of far-field sensing should not be interpreted as malfunction of dual chamber pacemakers with atrial-based lower rate timing. |
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Authors:
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S Serge Barold |
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Publication Detail:
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Type: Case Reports; Journal Article |
Journal Detail:
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Title: Pacing and clinical electrophysiology : PACE Volume: 26 ISSN: 0147-8389 ISO Abbreviation: Pacing Clin Electrophysiol Publication Date: 2003 Nov |
Date Detail:
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Created Date: 2003-11-19 Completed Date: 2004-03-25 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 7803944 Medline TA: Pacing Clin Electrophysiol Country: United States |
Other Details:
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Languages: eng Pagination: 2188-91 Citation Subset: IM |
Affiliation:
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Tampa General Hospital, Tampa, Florida, USA. ssbarold@aol.com |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Cardiac Pacing, Artificial
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methods* Electrocardiography Heart Block / physiopathology, therapy* Humans Sick Sinus Syndrome / physiopathology, therapy* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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